feat: add export and backup commands

- nib export: dump all entities to JSON (stdout or --output file) - nib backup: atomic SQLite backup via VACUUM INTO (WAL-safe) - Store.Backup() method on db layer - Tests for both commands
2026-05-20 20:54:44 -04:00
parent 33f6d99ba7
commit 2152baeb4f
4 changed files with 229 additions and 0 deletions
@@ -0,0 +1,113 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"github.com/lerko/nib/internal/db"
+	"github.com/spf13/cobra"
+)
+
+var exportOutput string
+
+var exportCmd = &cobra.Command{
+	Use:   "export",
+	Short: "dump all entities to JSON",
+	RunE:  runExport,
+}
+
+func init() {
+	exportCmd.Flags().StringVarP(&exportOutput, "output", "o", "", "write to file instead of stdout")
+	rootCmd.AddCommand(exportCmd)
+}
+
+type exportEntity struct {
+	ID          string   `json:"id"`
+	CreatedAt   string   `json:"created_at"`
+	ModifiedAt  string   `json:"modified_at"`
+	Body        string   `json:"body"`
+	Title       *string  `json:"title,omitempty"`
+	Description *string  `json:"description,omitempty"`
+	Glyph       string   `json:"glyph"`
+	TimeAnchor  *string  `json:"time_anchor,omitempty"`
+	CompletedAt *string  `json:"completed_at,omitempty"`
+	Pinned      bool     `json:"pinned"`
+	DeletedAt   *string  `json:"deleted_at,omitempty"`
+	Tags        []string `json:"tags"`
+	CardType    *string  `json:"card_type,omitempty"`
+	CardData    *string  `json:"card_data,omitempty"`
+	UseCount    int      `json:"use_count"`
+	LastUsedAt  *string  `json:"last_used_at,omitempty"`
+}
+
+func runExport(cmd *cobra.Command, _ []string) error {
+	store, err := openStore()
+	if err != nil {
+		return err
+	}
+	defer store.Close()
+
+	ctx := cmd.Context()
+
+	p := db.DefaultListParams()
+	p.IncludeDeleted = true
+	p.Limit = 10000
+
+	entities, err := store.List(ctx, p)
+	if err != nil {
+		return err
+	}
+
+	out := make([]exportEntity, len(entities))
+	for i, e := range entities {
+		out[i] = exportEntity{
+			ID:         e.ID,
+			CreatedAt:  e.CreatedAt.Format("2006-01-02T15:04:05Z07:00"),
+			ModifiedAt: e.ModifiedAt.Format("2006-01-02T15:04:05Z07:00"),
+			Body:       e.Body,
+			Title:      e.Title,
+			Glyph:      string(e.Glyph),
+			TimeAnchor: e.TimeAnchor,
+			Pinned:     e.Pinned,
+			Tags:       e.Tags,
+			CardData:   e.CardData,
+			UseCount:   e.UseCount,
+		}
+		if e.Description != nil {
+			out[i].Description = e.Description
+		}
+		if e.CompletedAt != nil {
+			s := e.CompletedAt.Format("2006-01-02T15:04:05Z07:00")
+			out[i].CompletedAt = &s
+		}
+		if e.DeletedAt != nil {
+			s := e.DeletedAt.Format("2006-01-02T15:04:05Z07:00")
+			out[i].DeletedAt = &s
+		}
+		if e.CardType != nil {
+			s := string(*e.CardType)
+			out[i].CardType = &s
+		}
+		if e.LastUsedAt != nil {
+			s := e.LastUsedAt.Format("2006-01-02T15:04:05Z07:00")
+			out[i].LastUsedAt = &s
+		}
+	}
+
+	data, err := json.MarshalIndent(out, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	if exportOutput != "" {
+		if err := os.WriteFile(exportOutput, data, 0o600); err != nil {
+			return err
+		}
+		fmt.Fprintf(cmd.ErrOrStderr(), "exported %d entities to %s\n", len(out), exportOutput)
+		return nil
+	}
+
+	fmt.Println(string(data))
+	return nil
+}